title: Three-dimensional corrective osteotomy using a patient-specific osteotomy guide and bone plate based on a computer simulation system: accuracy analysis in a cadaver study.
abstract: BACKGROUND
  The accuracy of three-dimensional (3-D) corrective osteotomy using a patient-specific osteotomy guide and bone plate based on computer simulation was investigated.
  
  
  METHODS
  Six fresh-frozen cadaver upper limbs were used. A patient-specific osteotomy guide designed to realize a preplanned osteotomy was set on the distal humerus and distal radius, and the error in the setting location was evaluated. After the osteotomy, the surgical site was fixed using a patient-specific bone plate designed to exactly fit the anatomical shape of the postoperative bone model. The postoperative results were compared with the preoperative simulation.
  
  
  RESULTS
  The errors in the guide location on the humerus and radius were <1.5° and 1.0 mm and <1.0° and 1.0 mm, respectively. The plate fixation errors of the humerus and radius were <2.0° and 1.5 mm and <1.0° and 1.0 mm, respectively.
  
  
  CONCLUSIONS
  The system is sufficiently feasible to realize precise 3-D deformity correction of a limb.
authors.affiliation: Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2, Yamada-oka, Suita, Osaka, 565-0871, Japan.
authors.forename: Shinsuke
authors.initials: S
authors.lastname: Omori
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Murase
authors.forename: Toshiyuki
authors.initials: T
authors.lastname: Kataoka
authors.forename: Yohei
authors.initials: Y
authors.lastname: Kawanishi
authors.forename: Keiichiro
authors.initials: K
authors.lastname: Oura
authors.forename: Junichi
authors.initials: J
authors.lastname: Miyake
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Tanaka
authors.forename: Hideki
authors.initials: H
authors.lastname: Yoshikawa
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001860:Bone Plates; D002102:Cadaver; D003198:Computer Simulation; D004867:Equipment Design; D005260:Female; D006801:Humans; D006811:Humerus / Q000000981:diagnostic imaging / Q000601:surgery; D021621:Imaging, Three-Dimensional; D008297:Male; D008953:Models, Anatomic; D010027:Osteotomy / Q000379:methods*; D066230:Patient-Specific Modeling; D011884:Radius / Q000000981:diagnostic imaging / Q000601:surgery; D025321:Surgery, Computer-Assisted / Q000379:methods*; D014057:Tomography, X-Ray Computed
keywords: Three-dimensional; bone plate; corrective osteotomy; osteotomy guide; patient-specific